<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <form action="1.php" method="POST" auto id="form1">
        username:<input type="text" name="username"><br>
        password:<input type="text" name="password"><br>
        <button type="submit">login</button>
    </form>
<hr>
    <form action="2.php" method="POST" id="form1">
        username2:<input type="text" name="username"><br>
        password2:<input type="text" name="password"><br>
        <button type="submit">login</button>
    </form>
    <script src="js/require.js" data-main='js/main.js'></script>
</body>

</html>